Capsules · 120 capsules · 120 servings · $0.68/serving
Metabolic Code's Suntheanine® delivers L-theanine in its patented, pure isomer form, the same standardized compound used in clinical research, to support relaxed alertness, stress response, and cognitive focus without sedation. It's well-suited for adults seeking a non-stimulant option for occasional stress and mental clarity.
Why It's Worth Considering: Suntheanine® is a trademarked, pharmaceutical-grade form of L-theanine produced via enzymatic synthesis, yielding a highly pure L-isomer rather than a racemic mixture found in many generic versions.
L-theanine produces measurable alpha brain wave increases within 30-40 minutes of ingestion. Most people notice a sense of calm focus within 30-60 minutes. Unlike prescription anti-anxiety medications, it works quickly without sedation, cognitive impairment, or dependence.
Yes — this is the most well-studied nootropic combination. L-theanine (200mg) smooths caffeine's stimulatory effects, reducing jitteriness and anxiety while preserving alertness and focus. Studies show the combination improves attention and task-switching better than either alone. The ideal ratio is 2:1 theanine to caffeine.
Yes. L-theanine is one of the safest supplements available — it's the primary amino acid in green tea. Doses up to 400mg/day have shown no adverse effects in clinical studies. No tolerance builds up, no withdrawal, and no dependence. It can be taken daily for years without concern.
L-theanine improves sleep QUALITY without causing drowsiness — it promotes relaxation and reduces racing thoughts, making it easier to fall asleep. It's particularly effective for people whose insomnia is driven by anxiety or an overactive mind. Take 200-400mg about 1 hour before bed. Unlike melatonin, it won't make you groggy if you need to wake up.
Apotheca is analyzing ingredient interactions, stacking compatibility, and timing recommendations for Metabolic Code - Suntheanine®. This data will be available soon.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
